The Secret Society of Lathe Trolls

I have a Gotham-Grampian PS 150 W power supply that has an octal socket for an Edison Thermal Delay, but the literature I have does not show this component on the schematic, nor is it listed in the parts inventory. Does someone out there have the schematic/parts list that i need to begin testing my ...

Please explain how to alter the octal jumper to test the amp with a speaker?
Nick Stevens
Downtown Recording

My Presto 6n lathe currently has 33RPM and 78RPM idler pucks. I want to replace the 78RPM puck, which is in great shape, with a 45RPM puck. Looking for a solution, or someone to point me in the right direction. Thanks,
Nick Stevens